Which sphere is NOT a part of the cycling of oxygen through Earth's systems? A. biosphere B. exosphere C. atmosphere D. hydrosphere

if a pressure of 70. kPa on a volume of 80. cm cubed is reduced to 10. kPa, by what factor does the pressure change

Is the author of the article suggesting that we will be able to maintain CO2 levels in the future? Which selection from the article BEST supports your answer? A. Yes. "The average growth rate is remaining on the high end.

Two objects are in freefall. Object A experiences a gravitational force of 10 N. Object B experiences a gravitational force of 20 N. Which experiences the greater acceleration?

A lab technician uses laser light with a wavelength of 670 nm to test a diffraction grating. When the grating is 40.0 cm from the screen, the first-order maxima appear 6.00 cm from the center of the pattern.

A water rocket can reach a speed of 76 m/s in 0.060 seconds from launch. What is its average acceleration?

After creating a question and forming a hypothesis, what is the next step in the scientific method

Roger sees water balloons fall past his window. He notices that each balloon strikes the sidewalk 0.51 s after passing his window. Roger's room is on the second floor, 10 m above the sidewalk.

Which statements accurately describe the Doppler effect?

Describe how mass and distance affect gravitational force.

a bike can climb the inclined road at uniform speed of 72 km/hr by applying force 500N what will be the power applied by the bike?